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RISAnalysis of a Nonlinear System Exhibiting Chaotic, Noisy Chaotic, and Random Behaviors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study presents a stochastic approach for the analysis of nonchaotic, chaotic, random and nonchaotic, random and chaotic, and random dynamics of a nonlinear system. The analysis utilizes a ...
Modeling and Identification of a Nonlinear SDOF Moored Structure, Part 1—Hydrodynamic Models and Algorithms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The highly nonlinear responses of compliant ocean structures characterized by a large-geometry restoring force and coupled fluid-structure interaction excitation are of great interest to ocean and ...
Modeling and Identification of a Nonlinear SDOF Moored Structure, Part 2—Comparisons and Sensitivity Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A system-identification technique based on the Reverse Multiple-Input/Single-Output (R-MI/SO) procedure is applied to identify the parameters of an experimental mooring system exhibiting nonlinear ...
Nonlinear Rocking Motions. II: Overturning under Random Excitations
Publisher: American Society of Civil Engineers
Abstract: Rocking responses of rigid objects under combined deterministic and stochastic excitations of arbitrary relative intensities are examined from a fully probabilistic perspective. The associated Fokker-Planck equation is ...
Experimental Calibration of Bifurcation Superstructure of Nonlinear System
Publisher: American Society of Civil Engineers
Abstract: Results of a medium-scale experimental study revealing the underlying superstructure in bifurcation sets of a submerged, moored ocean system are reported. The experimental model, assimilating nonlinear moored structural ...
Nonlinear Rocking Motions. I: Chaos under Noisy Periodic Excitations
Publisher: American Society of Civil Engineers
Abstract: The effects of low-intensity random perturbations on the stability of chaotic response of rocking objects under otherwise periodic excitations are examined analytically and via simulations. A stochastic Melnikov process ...
Stochastic Analysis of a Single-Degree-of-Freedom Nonlinear Experimental Moored System Using an Independent-Flow-Field Model
Publisher: American Society of Civil Engineers
Abstract: Stochastic characteristics of the surge response of a nonlinear single-degree-of-freedom moored structure subjected to random wave excitations are examined in this paper. Sources of nonlinearity of the system include a ...
Noisy Nonlinear Motions of Moored System. Part I: Analysis and Simulations
Publisher: American Society of Civil Engineers
Abstract: Nonlinear responses of a submerged moored structure are investigated taking into account the presence of environment random noise. Sources of nonlinearity of the system include a quadratic Morison hydrodynamic damping and ...
Noisy Nonlinear Motions of Moored System. II: Experimental Study
Publisher: American Society of Civil Engineers
Abstract: An experimental study of a nonlinear moored structural system subjected to monochromatic wave excitations with random perturbations is reported in this paper. Sources of nonlinearity in the system include large geometric ...
Analysis of Bifurcated Superstructure of Nonlinear Ocean System
Publisher: American Society of Civil Engineers
Abstract: An intricate universal superstructure in bifurcation sets and routes to chaos of a nonlinear moored ocean system subjected to monochromatic wave excitations are investigated analytically and demonstrated numerically in ...